Worksheet: Tectonic Hazards: Volcanoes

In this worksheet, we will practice identifying where volcanic eruptions occur and describing the hazards they create.

Q1:

Where do most volcanic eruptions occur?

  • ANear the equator
  • BIn cold countries
  • CIn hot countries
  • DWhere tectonic plates meet

Q2:

What is a volcano?

  • AAn opening in Earth’s atmosphere
  • BAn opening in Earth’s crust
  • CA strong wind
  • DA type of mountain

Q3:

Scientists observe volcanic activity using monitors to measure the movement of the rocks that make up a volcano.

Volcano fumaroles-72 ppi

They can also predict when a volcano might erupt by measuring the gases that it releases. What name is given to scientists who study volcanoes?

  • AA volcanologist
  • BA paleontologist
  • CA botanist

Q4:

When volcanoes erupt, the magma is forced out through a vent or opening. Once magma reaches the surface, it is called .

Volcano erupting- 72 ppi
  • Abasalt rock
  • Ban ash cloud
  • Clava

Q5:

The photograph shows Mount Bromo in Indonesia, which is an active volcano.

What is an active volcano?

Mount Bromo in Indonesia "volcano"-Cropped
  • AA volcano that will not erupt again
  • BA volcano that has not erupted for some time
  • CA volcano that is erupting or has erupted recently

Q6:

Many of the world’s earthquakes happen where tectonic plates meet.

What is the name given to the boundary where two plates meet?

  • AThe epicenter
  • BA plate
  • CA fault line
  • DA volcano

Q7:

The diagram shows the parts of a volcano.

What is the molten rock that rushes up to the surface during a volcanic eruption called?

  • AMagma
  • BBedrock
  • CAsh

Q8:

The photograph shows the Black Waterfall in Iceland, which was formed out of lava.

The Black Waterfall in Iceland-Cropped

When lava cools, it becomes rock. The rock in this photograph is called basalt.

What type of rock is basalt?

  • AMetamorphic
  • BIgneous
  • CSedimentary

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